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require 'chef/config'
require 'chef/cookbook_version'
require 'chef/cookbook/chefignore'
require 'chef/cookbook/metadata'
class Chef
class Cookbook
class CookbookVersionLoader
FILETYPES_SUBJECT_TO_IGNORE = [ :attribute_filenames,
:definition_filenames,
:recipe_filenames,
:template_filenames,
:file_filenames,
:library_filenames,
:resource_filenames,
:provider_filenames]
attr_reader :cookbook_name
attr_reader :cookbook_settings
attr_reader :metadata_filenames
def initialize(path, chefignore=nil)
@cookbook_path = File.expand_path( path )
@cookbook_name = File.basename( path )
@chefignore = chefignore
@metadata = Hash.new
@relative_path = /#{Regexp.escape(@cookbook_path)}\/(.+)$/
@cookbook_settings = {
:attribute_filenames => {},
:definition_filenames => {},
:recipe_filenames => {},
:template_filenames => {},
:file_filenames => {},
:library_filenames => {},
:resource_filenames => {},
:provider_filenames => {},
:root_filenames => {}
}
@metadata_filenames = []
end
def load_cookbooks
load_as(:attribute_filenames, 'attributes', '*.rb')
load_as(:definition_filenames, 'definitions', '*.rb')
load_as(:recipe_filenames, 'recipes', '*.rb')
load_as(:library_filenames, 'libraries', '*.rb')
load_recursively_as(:template_filenames, "templates", "*")
load_recursively_as(:file_filenames, "files", "*")
load_recursively_as(:resource_filenames, "resources", "*.rb")
load_recursively_as(:provider_filenames, "providers", "*.rb")
load_root_files
remove_ignored_files
if File.exists?(File.join(@cookbook_path, "metadata.rb"))
@metadata_filenames << File.join(@cookbook_path, "metadata.rb")
elsif File.exists?(File.join(@cookbook_path, "metadata.json"))
@metadata_filenames << File.join(@cookbook_path, "metadata.json")
end
if empty?
Chef::Log.warn "found a directory #{cookbook_name} in the cookbook path, but it contains no cookbook files. skipping."
end
@cookbook_settings
end
def cookbook_version
return nil if empty?
Chef::CookbookVersion.new(@cookbook_name.to_sym).tap do |c|
c.root_dir = @cookbook_path
c.attribute_filenames = cookbook_settings[:attribute_filenames].values
c.definition_filenames = cookbook_settings[:definition_filenames].values
c.recipe_filenames = cookbook_settings[:recipe_filenames].values
c.template_filenames = cookbook_settings[:template_filenames].values
c.file_filenames = cookbook_settings[:file_filenames].values
c.library_filenames = cookbook_settings[:library_filenames].values
c.resource_filenames = cookbook_settings[:resource_filenames].values
c.provider_filenames = cookbook_settings[:provider_filenames].values
c.root_filenames = cookbook_settings[:root_filenames].values
c.metadata_filenames = @metadata_filenames
c.metadata = metadata(c)
end
end
# Generates the Cookbook::Metadata object
def metadata(cookbook_version)
@metadata = Chef::Cookbook::Metadata.new(cookbook_version)
@metadata_filenames.each do |metadata_file|
case metadata_file
when /\.rb$/
apply_ruby_metadata(metadata_file)
when /\.json$/
apply_json_metadata(metadata_file)
else
raise RuntimeError, "Invalid metadata file: #{metadata_file} for cookbook: #{cookbook_version}"
end
end
@metadata
end
def empty?
cookbook_settings.inject(true) do |all_empty, files|
all_empty && files.last.empty?
end
end
def merge!(other_cookbook_loader)
other_cookbook_settings = other_cookbook_loader.cookbook_settings
@cookbook_settings.each do |file_type, file_list|
file_list.merge!(other_cookbook_settings[file_type])
end
@metadata_filenames.concat(other_cookbook_loader.metadata_filenames)
end
def chefignore
@chefignore ||= Chefignore.new(File.basename(@cookbook_path))
end
def load_root_files
Dir.glob(File.join(@cookbook_path, '*'), File::FNM_DOTMATCH).each do |file|
next if File.directory?(file)
@cookbook_settings[:root_filenames][file[@relative_path, 1]] = file
end
end
def load_recursively_as(category, category_dir, glob)
file_spec = File.join(@cookbook_path, category_dir, '**', glob)
Dir.glob(file_spec, File::FNM_DOTMATCH).each do |file|
next if File.directory?(file)
@cookbook_settings[category][file[@relative_path, 1]] = file
end
end
def load_as(category, *path_glob)
Dir[File.join(@cookbook_path, *path_glob)].each do |file|
@cookbook_settings[category][file[@relative_path, 1]] = file
end
end
def remove_ignored_files
@cookbook_settings.each_value do |file_list|
file_list.reject! do |relative_path, full_path|
chefignore.ignored?(relative_path)
end
end
end
def apply_ruby_metadata(file)
begin
@metadata.from_file(file)
rescue JSON::ParserError
Chef::Log.error("Error evaluating metadata.rb for #@cookbook_name in " + file)
raise
end
end
def apply_json_metadata(file)
begin
@metadata.from_json(IO.read(file))
rescue JSON::ParserError
Chef::Log.error("Couldn't parse cookbook metadata JSON for #@cookbook_name in " + file)
raise
end
end
end
end
end
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